Line Level Audio Plus Headphone Adapter | Headset Buddy
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GM 3/8" Fuel Line to -6AN Adapter - Russell #644123 - WARR Performance LLC
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Custom Cables 3.5mm TRS to TRRS Line Level Recording Adapter Cable for iOS & Android (Mogami W2314) | Performance Audio
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Does this also work as a microphone jack / audio line in adapter? - Apple
3/8" Quick-Connect EFI Fuel Line Fuel Pressure Sensor Adapter
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Amazon.com: Headset Buddy Line-Level Audio Adapter with Built in Attenuation for iPhone, Smartphones, Soundboards and Mixers (iPhone-Mic-Line) : Electronics
Male GM 3/8" Fuel Line to -6AN Adapter - Russell #640940 - WARR Performance LLC